/Engine/Source/Runtime/Experimental/Chaos/Public/GeometryCollection/GeometryCollectionCollisionStructureManager.h
Culls particles insideImplicit_, and coincident particles (defined by being within 1/20'th of the size of the domain from one another), truncates atCollisionParticlesMaxInput_, and returns a bounding volume hierarchy of the remainder.
static [FSimplicial](API\Runtime\Chaos\GeometryCollection\FCollisionStructureManager\FSimplicial) * NewSimplicial ( const [Chaos::FParticles](API\Runtime\Chaos\Chaos\FParticles) & Vertices, const [Chaos::FTriangleMesh](API\Runtime\Chaos\Chaos\FTriangleMesh) & TriMesh, const [Chaos::FImplicitObject](API\Runtime\Chaos\Chaos\FImplicitObject) * Implicit, const int32 CollisionParticlesMaxInput )